Everyone knows DDoS attacks can be quite annoying and disruptive, but they're also particularly expensive, it seems, costing organizations on average more than $2.5 million in revenue.

According to the fourth annual Worldwide DDoS Attacks and Cyber Insights Research Report from Neustar, a neutral provider of real-time information services, DDoS attacks can be extremely costly for companies.

“Distributed Denial of Service (DDoS) attacks are the zeitgeist of today's Internet. The question organizations must ask now is how they are prepared to manage these highly disruptive events. Are they prepared for the bad day where their customers call and ask why the website is down?" said Barrett Lyon, Head of Research and Development at Neustar... (read more)